Machine for driving slugs



3 Sheets-Sheet 1.

(No'mdel.)

No. 601,255. Patented Mar. 29, 1898.

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3 Sheets-Sheet 2.

Patented Mar. 29, 1898.

y (No Model.) v v J..A.H0RT0N. vMACHINE FOR DRIVING SLUGS.

fa m m THE ngnms PETERS :0., Fumo-uni, wAsHmuros, D. c.

'(No'Model.) 3 Sheets-Sheet 3.

J. A. HORTON.

MACHINE POR DRIVING SLUGS.

No. 601,255. Patented Mar. Z9, 1898.

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UN1TED-- STATES- PATENT OFFICE.

JAMES A. HRTON, OF READING, MASSACHUSETTS, ASSIGNOR TO THE WIRE GRIP'FASTENING COMPANY, OF BOSTON, .MASSACHUSETTS MACHINE FOR DRIVING`SLUGS.

sPEcrFrcArroN forming part of Letters Patent No. 601,255, dated March 29, 139s.

` Apploationled March 3, 1897. Serial No. 625,842. (No model.)l

` To all whom t may concern.-

Be it known that I, JAMES A. HoR'roN, of Reading, inthe county of Middlesex and vState of Massachusetts, have invented certain new and useful Improvements in Machines for Driving Slugs, of which the following is a speciiication.

This invention has relation to machines for driving slugs into the heels of boots and shoes, and' has for its object to provide certain improvements in the same, whereby slugs of different shapes in cross-section may be placed alternately so as to present a pleasing and ornamental appearance.

To this end the invention consists of a machine in which two or more different strips of slugs are fed automaticallyl one by one and alternately to the-action of a driver, which inserts them into the heel.

It also consists in certain other arrangements and constructions of parts, which are illustrated in the drawings and which I shall now proceed to describe in` detail, and then point out in the annexed claims.

A Reference is to be had to the accompanying drawings, and to the letters marked thereon,

forming a part of this specification, the same letters designating the same parts or features, as the case may be, wherever they occur.`

Of the drawings, Figure l represents a front end elevation of a machine embodying my v improvements. l Fig. A2 represents a side ele- 1 be driven into the heel.

vation of the same. gitudinal section through the devices which feed the two sets of slugs to the action of the cutter and the: driver. Fig. 4 represents in vertical section the feeding devices just referred to and the adjacent parts, a slug from the upper strip being inA position to be driven into the heel. Fig. 5 represents a section of the same, taken on the line 5 5 of Fig. 4. Fig. Grepresents a horizontal section on the line 6 6 of Fig. 4. Fig. 7 represents a section similar to that in Fig. 4, but illustrating a slug on thel lower stripas being fed into position to Figs. 8 and 9 represent the driver and awl in their twodifferent positions, respectively. Fig. l0 represents the appearance of a heel after the slugs 5 have been driven into place.

Before proceeding to describe the machine illustrated in the drawings vI may state that it is selected by me merely for the purpose of Fig. 3 represents a lon- `I do not limit myself ,in any way to the details of construction, as the invention may be embodied in machines constructed in other ways and operated in a different manner.

The machine illustrated has a standard a, upon which is mounted the frame or head Ct', having journals a2 a2, in which is mounted a driving-shaft b. Power may be imparted to .the said shaft from an outside source by a belt passing around a belt-wheel o7 or in any other desired way, and upon it are mounted disks b', b2, and b3, having cam-grooves, by means of which some of the operative parts of the machine are operated. Upon the end of the shaft is a disk b4 and upon it on the other side of the grooved disks is apinion b5, both of which actuate other parts of the machine, as I shall now proceed to describe.

d is a swinging guide for the awl-carrier d', and eis the swinging guide for the drivercarrier, both of which are pivoted at their upper ends on a screw f, threaded int'o the frame a', as shown in dotted lines in Figs. l and 2. The awl d2 is suitably clamped in the lower end of the carrier d', while the driverl e2 is likewise clamped in the lower end of the driver bar or carrier, and they may be alternately swung into the vertical plane of the axis of the shaft b for a purpose to be set forth.

The means for swinging the awl-carrier laterally consists of an arm d3, rigidly secured to a rock-shaftdl, journaled in a bracket a3, extending out from the main frame a', and an arm d5, also rigidly secured to the rockshaft d4 and having on its upper end a roller projecting into a cam-slot in the disk b on the. shaft b, before referred to. The lower end of the arm d3 is bifurcated to e'Xtend on both sides of a block d6, pivoted to the carrier d by a screw or pin, (these last-namedv parts being shown in dotted lines in Fig. 1,) so

that when the said arm d3 is swung to the left it rocks the awl-carrier with it. To vary the swing of the awl-carrier, a set-screw @Z7 is passed through one of the forks on the end of the arm d3 and bears against a spring, (not shown,) the said screw being adjustable toward and from the block d6.

The awl is reciprocated by an arm dg, having apind10 extending through a slot in the rear of the guide d and engaging the awl-carrier d', said arm d9 being rigidly secured to a rock-shaft d, journaled in brackets a", extending out from the frame, there being also on the rock-shaft an arm d, having a roller extending into the cam-slot in the disk Z13 on the shaft d.

New it will be seen that the awl-earrier cZ/ may be reciproeated vertically and at the same time be translated bodily from side to side even while a reciprocatory motion is being imparted to it.

Next referring to the driver-bar e/ it will be seen that it is reciproeated vertically by a crank-pin c3, extending out from the disk b4, and a rod c4, connecting the pin with a pin c, projecting ont from the driver-bar c through a slot in the face-plate of the driver-bar guide c. The lateral translation or vibration of the driver-bar is effected by an arm c6, rigidly secured upon the rock-shaft e7, journaled in brackets a5 a, extending out from the main frame and also having rigidly secured thereto an arm cs, provided on its upper end with a roller projecting into a cam-slot in the disk b2 on the shaft ZJ.

Preferably the arms (Z3 and d5 and the arms c and cS are rigidly secured to their respective rock-shafts d* and e7 by set-screws, and each pair of arms constitutes a lever fulcrumed in the brackets extending out from the lnain frame.

The drivin g or power-imparting devices are so timed that the awl is driven into a heel and is carried to the left into the central line of the machine (or the line passing vertically through the axis of the shaft d) and is withdrawn, and the driver is moved from the left to the right into the said line and is driven downward to force a slug into the aperture made by the awl in the heel. The guides (l and e for the awl-carrier and the driver-bar carrier are held against transverse movement by a guide-strip g, having its ends extending rearwardly and secured by screws g/ to the frame CL.

The slugs which are fed to the action of the driver-bar are formed in two strips or ribbons A l5, as shown in Figs. 2, 4, and 7, said slugs having their heads connected together. Preferably the slugs of the two strips are of different shapes in crosssection, as illustrated in Fig. lO-that is to say,` the slugs of one strip A may be rectangular' in cross-section, while those of the other strip may be diamondshaped in cross-section-and they are automatically fed forward one by one and alternately to the action of the driver-bar, so that, first, a slug rectangular in section is driven into the heel, and then a slug diamondshaped in section is driven next to it, and so on,tl1us giving to the heel an ornamental character.

The strips are wound on rolls, which are not shown, but which may be located at any desired point adjacent the mechanism, from which they are carried to the front end of the machine, where they are respectively engaged by pinions 7L and z', the teeth of which are just far enough apart to enterin the apertures between the slugs. The pinions 7L and t' are secured upon sleeves h i', respectively, loosely placed upon a shaft j, mounted in a box having a side wall am, and having top and bottom plates a of' projecting out from the frame a'.

The sleeve 7L' has secured to it a ratchetwheel h2, while a similar ratchet-wheel 2 is secured to the sleeve i. By means of a suitable mechanism now to be described the pinions h and t' have a step-bystep motion imparted'to them automatically and alternately, whereby they are caused to force first one strip forward and the other strip forward to the action of a cutter, which l shall describe, and the driver-bar c2.

The pinion b5 on the shaft l) intermeshes with a large gear-wheel 7e, which is rotated once for every two revolutions of the said pinion b5. The said wheel 7a is secured upon the end of a shaft 7c', suitably mounted in brackets al projecting out from the fralne a', and has secured to it a path-cam 7.32, into the slot of which projects the roller Z on the end of an arm l2, mounted upon the upper end of a rock-shaft Z, journaled in bearings a8, secured to the main frame ct'. At the lower end of the rock-shaft Z is a similar arm l", to the outer end of which is pivoted a bar m, which, when the said shaft Z is rocked, is reciprocated longitudinally.

The front end of the bar m is pivoted in a sliding block m', which is adapted to slide in the box on the frame, which has a front plate a.

Mounted loosely upon the pin oniwhich pivots the end of the bar m to the sliding block m', are two pawls n and o, the former of which engages the ratchet-wheel h2 and the latter of which engages the ratchet-wheel i2, the said pawls being arranged oppositely or on opposite sides of their respective pawls and being so formed at their ends that a longitudinal movement of the bar m will cause the pawl n to advance the ratchet-wheel 7b2 one step while the ratchet-wheel i2 remains stationary, and the backward movement of the bar m will cause the ratchet-wheel i2 to move forward one step while the ratchet-wheel h2 remains stationary. The said pawls are held in yielding engagement with their respective ratchet-wheels by springs p, secured at their outer ends to their respective pawls and at their inner ends to a screw p', extending through the flanges ai. By reason of the slowing-down gearing, which causes the bar m to be reeiprocated once for every two reciprocations of the driver-bar, and by reason of the pawls and ratchets just described, which are thus actuated alternately, first a slug on the strip B is presented to the action of the driver-bar c2 and then a slug on the strip A is presented thereto.

The guide for the driver-bar is extended below the strip g and is provided with an adjustable cutter-blade q, which has a cutting IIO u edgesufticient in length to cut offavslug from either of the strips A or B.'l v 'Ihefs'nai'fd'cutter-v blade is located in a recessin the'rfear face of a plate t, secured to the guidejanldf, is 4held therein by screws q', passingthrough slots in the said plate, being adjusted byimeans of a screw q2, bearing against the`edge""thereof. Between the cutting edge of thef iter and the edge of the plate is a small spa ,i for throat qs, (see Figs. 4 to 9, inclusive,) adapted to receive a slug and the driver-bare?.y-

, A stationary blade is secured Vto the main frame a and its edge is adapted` to coact with the shear edge of the cutter q5in cutting'loif the, projecting slug of each strip. The said cutterfan extends laterally far enough for the said strips to bear against it as they are fed forward by their respective pinions. v It mayl be adjusted laterally, being formed witlra slot lr" to receive the screw 'r2 which secures it in place, as shown in Fig. 8. n Asuitable The operation of the machine is as follows :1

' The -lofo'ot or shoeis placed upon a suitable' lss isf

horn secured to the standard a (and which I have not shown, since such horns are common,`

in the art)and then, power being applied to the shaft b through thefmediumof the belt-1I wheel b7,fthe awlguidelbeing in its farther-'Q most position to theright in Fig. l,fth`ej awl` is` thrust downward into the heel, as shown; in Fig. 8, and is carried to the left intofhthe central line ofthe machine.` As 'this is oc-,' curring,-the rock-shaft Z actuates the harm, and causes the pawl 'n to rotate the ratchet. h2" one toothv to force the last slug on the strip B forward into thethroat and againstthe platet on the guide d in front of thecutter gf Then as the awl is being withdrawn the driverv bar guide is fed to the left,.'cutting`off.the" lastslug from the strip Basitmoves, until thedrivervegis in lalinenment with the `aper"'y ture'made bythe awlin'the heel. Then the driver forces 'the slug f intothe .heel. In re-4 peating this operation the same'steps are fol-v lowed, except that since the bar m makes only one reciprocation to two reciprocations of the driver the next movement of the said barm causes the pawl o to rotate the ratchetwheel i2 to feed the stripforward, as shown in Fig. 7, so that the nexttime the driverbar descends the last slug from the said strip A will be driven into theheel. These movements are continued until a sufficient num-l ber of slugs have been driven into the heel, as shown in Fig. 10.

' It will be understood, as I have previously stated, that I do not limit myself to the de? slug from lonemstrip-isdriven. into they heel andV then a slugzfromthe otherl strip is driven in, and Vso onj-untilla; sufficient quantity of the slugs of both strips are driven into place.

The machine described is arranged for feeding two strips of slugs alternately; but I have contemplated the' feeding of. three or more strips by slight changes in the details of con` th'ed "slugs of 'the Vsaid Strips alternately i to the actionof the cutterl andthe driver.

A machine of the character, specified, comprising a driver,a laterally-movable guide for the driver,` a cutter mounted on the said guide," means for guiding stripsy ofconnected jslugsto the'machine, and means for automatically` advancing said strips alternately to theaction of the cutter, whereby the slugs of said stripsare presented alternately to the action ofthe'driver.

t.A pmachine of the character specied, lcomprising a driver, independent pinions for engaging separate strips of slugs to feed them forwardyand means f for", automatically actuating said pinions alternately, to present said slugs of said strips alternately to said driver.

5.,?Amachine of the character specified, comprising a reciprocating driver, independ-j .lentjpinions for engaging separate strips of yslugsto-'feed them forward, oppositely-acting pawls for imparting an intermittent motionto the pinions, and automatically-acting means for reciprocating said pawls to present the slugs alternately to said driver for each 'reciprocation thereof.

` 6. A machine of the character specified,

lcomprising a driver, a power-shaftfor actuating'said driver, independentpinions for engaging separate strips of slugs to feed them forward, and vautomatic means operated by said shaft,jfor yimparting motion first to one of said pinions and then to another.

7. l.A machine of. the character specied comprising a reciprocatory driver, a pivoted guide therefor, means for feeding two or more lstripsof slugs alternately to the guide, means on the guide for cutting off a slug, and means for oscillating said guide.

In testimony whereof I have signed my name to thisspecification, in the presence of two subscribing witnesses, this 20th day of February, A. D. 1897.

JAMES A. HoRToN.

Witnesses:

Y E. BATGHELDER, P. 17V.` PEZETTI.

IIO 

